update golden config

diff --git a/golden_config.tcl b/golden_config.tcl
index 5d6d339..9d6a83c 100644
--- a/golden_config.tcl
+++ b/golden_config.tcl

@@ -1,5 +1,5 @@
-# DO NOT EDIT THIS FILE!
-# We will rebuild your GDS for the final submission using the information given in the yaml file only
+# PLEASE DO NOT EDIT THIS FILE!
+# The only thing you can change is the PL_BASIC_PLACEMENT line
 # If you get stuck with this config, please open an issue or get in touch via the discord.
 
 # User config
@@ -31,7 +31,10 @@
 set ::env(FP_SIZING) absolute
 set ::env(DIE_AREA) "0 0 150 170"
 set ::env(FP_CORE_UTIL) 55
-set ::env(PL_BASIC_PLACEMENT) {1}
+
+# fails for small jobs but much faster for bigger ones
+set ::env(PL_BASIC_PLACEMENT) {0}
+set ::env(GLB_RT_ALLOW_CONGESTION) "1"
 
 set ::env(FP_IO_HLENGTH) 2
 set ::env(FP_IO_VLENGTH) 2
@@ -46,7 +49,8 @@
 
 # clock
 set ::env(CLOCK_TREE_SYNTH) 1
-set ::env(CLOCK_PERIOD) "100000"
+# period is in ns, so 20000ns == 50kHz
+set ::env(CLOCK_PERIOD) "20000"
 set ::env(CLOCK_PORT) {io_in[0]}
 
 # hold/slack margin